$OpenBSD: patch-net_disk_cache_blockfile_disk_format_h,v 1.2 2015/04/27 16:38:25 robert Exp $
--- net/disk_cache/blockfile/disk_format.h.orig.port	Wed Apr 15 09:37:17 2015
+++ net/disk_cache/blockfile/disk_format.h	Wed Apr 15 09:37:35 2015
@@ -146,7 +146,9 @@ struct RankingsNode {
 };
 #pragma pack(pop)
 
+#if !defined(OS_BSD)
 static_assert(sizeof(RankingsNode) == 36, "bad RankingsNode");
+#endif
 
 }  // namespace disk_cache
 
